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Dysfunctional inhibitory control and impulsivity in Internet addiction
Jung-Seok Choi1, Su Mi Park2, Myoung-Sun Roh3
1Department of Psychiatry, SMG-SNU Boramae Medical Center, Seoul, Republic of Korea; Department of Psychiatry and Behavioral Science, Seoul National University College of Medicine, Seoul, Republic of Korea.
Psychiatry Research
|December 28, 2013
Summary
Individuals with Internet addiction (IA) show higher impulsivity as a personality trait and in their inhibitory functioning. This study highlights impulsivity
Area of Science:
- Psychology
- Neuroscience
- Behavioral Science
Background:
- Internet addiction (IA) is a growing concern.
- Impulsivity is a key factor in various psychological disorders.
Purpose of the Study:
- To explore the psychological profile of individuals with IA.
- To investigate impulsivity as a core trait and neuropsychological function in IA.
Main Methods:
- Compared 23 IA subjects with 24 healthy controls.
- Utilized questionnaires for trait impulsivity, depression, and anxiety.
- Administered traditional and computerized neuropsychological tests, including the Stroop test and Cambridge Neuropsychological Test Automated Battery.
Main Results:
- IA group showed higher trait impulsivity, novelty seeking, and harm avoidance.
- IA group performed worse on inhibitory function tests (stop signal test).
- IA group reported higher depression and anxiety, lower self-directedness and cooperativeness.
Conclusions:
- Impulsivity is a core personality trait in individuals with IA.
- Neuropsychological deficits in inhibitory control are associated with IA.
- IA is linked to broader psychological difficulties including depression and anxiety.
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